/*
 * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package com.sun.imageio.plugins.wbmp;

import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.metadata.IIOMetadataNode;
import javax.imageio.metadata.IIOMetadataFormat;
import javax.imageio.metadata.IIOMetadataFormatImpl;
import org.w3c.dom.Node;
import com.sun.imageio.plugins.common.I18N;

import com.sun.imageio.plugins.common.ImageUtil;

public class WBMPMetadata extends IIOMetadata {

  static final String nativeMetadataFormatName =
      "javax_imageio_wbmp_1.0";

  public int wbmpType;

  public int width;
  public int height;

  public WBMPMetadata() {
    super(true,
        nativeMetadataFormatName,
        "com.sun.imageio.plugins.wbmp.WBMPMetadataFormat",
        null, null);
  }

  public boolean isReadOnly() {
    return true;
  }

  public Node getAsTree(String formatName) {
    if (formatName.equals(nativeMetadataFormatName)) {
      return getNativeTree();
    } else if (formatName.equals
        (IIOMetadataFormatImpl.standardMetadataFormatName)) {
      return getStandardTree();
    } else {
      throw new IllegalArgumentException(I18N.getString("WBMPMetadata0"));
    }
  }

  private Node getNativeTree() {
    IIOMetadataNode root =
        new IIOMetadataNode(nativeMetadataFormatName);

    addChildNode(root, "WBMPType", new Integer(wbmpType));
    addChildNode(root, "Width", new Integer(width));
    addChildNode(root, "Height", new Integer(height));

    return root;
  }

  public void setFromTree(String formatName, Node root) {
    throw new IllegalStateException(I18N.getString("WBMPMetadata1"));
  }

  public void mergeTree(String formatName, Node root) {
    throw new IllegalStateException(I18N.getString("WBMPMetadata1"));
  }

  public void reset() {
    throw new IllegalStateException(I18N.getString("WBMPMetadata1"));
  }

  private IIOMetadataNode addChildNode(IIOMetadataNode root,
      String name,
      Object object) {
    IIOMetadataNode child = new IIOMetadataNode(name);
    if (object != null) {
      child.setUserObject(object);
      child.setNodeValue(ImageUtil.convertObjectToString(object));
    }
    root.appendChild(child);
    return child;
  }


  protected IIOMetadataNode getStandardChromaNode() {

    IIOMetadataNode node = new IIOMetadataNode("Chroma");
    IIOMetadataNode subNode = new IIOMetadataNode("BlackIsZero");
    subNode.setAttribute("value", "TRUE");

    node.appendChild(subNode);
    return node;
  }


  protected IIOMetadataNode getStandardDimensionNode() {
    IIOMetadataNode dimension_node = new IIOMetadataNode("Dimension");
    IIOMetadataNode node = null; // scratch node

    // PixelAspectRatio not in image

    node = new IIOMetadataNode("ImageOrientation");
    node.setAttribute("value", "Normal");
    dimension_node.appendChild(node);

    return dimension_node;
  }

}
